JSXv4: Recursive component produces infinite loop

It seems adding the `rec` keyword in combination with `@react.component` will result in an infinite loop when using JSX v4

```rescript
@react.component
let rec make = () => {
  React.null
}
```
compiles to
```javascript
function make(props) {
  while(true) {
    continue ;
  };
}

export {
  make ,
}
/* No side effect */
```
